1 files changed, 109 insertions, 0 deletions
diff --git a/src/VBox/Additions/x11/VBoxClient/seamless.h b/src/VBox/Additions/x11/VBoxClient/seamless.h
new file mode 100644
index 00000000..f9516f64
--- /dev/null
+++ b/src/VBox/Additions/x11/VBoxClient/seamless.h
@@ -0,0 +1,109 @@
+/* $Id: seamless.h $ */
+/** @file
+ * X11 Guest client - seamless mode, missing proper description while using the
+ * potentially confusing word 'host'.
+ */
+
+/*
+ * Copyright (C) 2006-2022 Oracle and/or its affiliates.
+ *
+ * This file is part of VirtualBox base platform packages, as
+ * available from https://www.virtualbox.org.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, in version 3 of the
+ * License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <https://www.gnu.org/licenses>.
+ *
+ * SPDX-License-Identifier: GPL-3.0-only
+ */
+
+#ifndef GA_INCLUDED_SRC_x11_VBoxClient_seamless_h
+#define GA_INCLUDED_SRC_x11_VBoxClient_seamless_h
+#ifndef RT_WITHOUT_PRAGMA_ONCE
+# pragma once
+#endif
+
+#include <iprt/thread.h>
+
+#include <VBox/log.h>
+#include <VBox/VBoxGuestLib.h>      /* for the R3 guest library functions  */
+
+#include "seamless-x11.h"
+
+/**
+ * Interface to the host
+ */
+class SeamlessMain
+{
+private:
+    // We don't want a copy constructor or assignment operator
+    SeamlessMain(const SeamlessMain&);
+    SeamlessMain& operator=(const SeamlessMain&);
+
+    /** X11 event monitor object */
+    SeamlessX11 mX11Monitor;
+
+    /** Thread to start and stop when we enter and leave seamless mode which
+     *  monitors X11 windows in the guest. */
+    RTTHREAD mX11MonitorThread;
+    /** Should the X11 monitor thread be stopping? */
+    volatile bool mX11MonitorThreadStopping;
+
+    /** The current seamless mode we are in. */
+    VMMDevSeamlessMode mMode;
+    /** Is the service currently paused? */
+    volatile bool mfPaused;
+
+    /**
+     * Waits for a seamless state change events from the host and dispatch it.  This is
+     * meant to be called by the host event monitor thread exclusively.
+     *
+     * @returns        IRPT return code.
+     */
+    int nextStateChangeEvent(void);
+
+    /** Thread function to monitor X11 window configuration changes. */
+    static DECLCALLBACK(int) x11MonitorThread(RTTHREAD self, void *pvUser);
+
+    /** Helper to start the X11 monitor thread. */
+    int startX11MonitorThread(void);
+
+    /** Helper to stop the X11 monitor thread again. */
+    int stopX11MonitorThread(void);
+
+    /** Is the service currently actively monitoring X11 windows? */
+    bool isX11MonitorThreadRunning()
+    {
+        return mX11MonitorThread != NIL_RTTHREAD;
+    }
+
+public:
+    SeamlessMain(void);
+    virtual ~SeamlessMain();
+#ifdef RT_NEED_NEW_AND_DELETE
+    RTMEM_IMPLEMENT_NEW_AND_DELETE();
+#endif
+
+    /** @copydoc VBCLSERVICE::pfnInit */
+    int init(void);
+
+    /** @copydoc VBCLSERVICE::pfnWorker */
+    int worker(bool volatile *pfShutdown);
+
+    /** @copydoc VBCLSERVICE::pfnStop */
+    void stop(void);
+
+    /** @copydoc VBCLSERVICE::pfnTerm */
+    int term(void);
+};
+
+#endif /* !GA_INCLUDED_SRC_x11_VBoxClient_seamless_h */